The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 26, 2026

Filed:

Dec. 06, 2021
Applicant:

Hitachi High-tech Corporation, Tokyo, JP;

Inventors:

Yasushi Terui, Tokyo, JP;

Kantarou Maruoka, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/04 (2006.01); G01N 30/72 (2006.01); G01N 30/02 (2006.01);
U.S. Cl.
CPC ...
H01J 49/0445 (2013.01); G01N 30/72 (2013.01); G01N 2030/027 (2013.01);
Abstract

An ion source includes: an atomizer configured to continuously introduce a liquid sample and atomize the liquid sample; a heating and mixing chamber configured to vaporize the atomized liquid sample; and a charge supply unit configured to ionize the vaporized liquid sample. The charge supply unit has a positive pressure with respect to the heating and mixing chamber. The vaporized liquid sample and a gaseous seed ion supplied from the charge supply unit are mixed in the heating and mixing chamber. An auxiliary gas for adjusting a gas flow rate in the heating and mixing chamber can be introduced into the heating and mixing chamber. The heating and mixing chamber has a chamber outlet configured to introduce the ionized liquid sample into a mass spectrometer. The chamber outlet is connected to a first pore of the mass spectrometer.


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